.btn-fab-ot {
  position: fixed;
  right: 28px;
  bottom: 28px;
  width: 58px;
  height: 58px;
  border-radius: 50%;
  z-index: 1040;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.22);
  font-size: 1.7rem;
  line-height: 1;
}

.btn-fab-ot.is-disabled {
  pointer-events: none;
  opacity: 0.6;
}

.page-loading-overlay {
  position: fixed;
  top: 70px;
  left: 240px;
  width: calc(100vw - 240px);
  height: calc(100vh - 70px);
  background: rgba(255, 255, 255, 0.85);
  z-index: 1000;
  display: flex;
  justify-content: center;
  align-items: center;
}

@media (max-width: 991.98px) {
  .page-loading-overlay {
    left: 0;
    width: 100vw;
  }
}

@media (max-width: 575.98px) {
  .btn-fab-ot {
    right: 18px;
    bottom: 18px;
  }
}